{"id":"CVE-2026-85743","title":"FreeScout: Server-side request forgery via incomplete outbound host validation and unguarded download sinks","summary":"FreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.230, multiple outbound paths in Helper::downloadRemoteFile(), Helper::checkPort(), Helper::sanitizeRemoteUrl(), MailboxesController.php, and ModulesController.php do n…","severity":"high","cvss":8.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:L","cvssSource":"cna","cwe":["CWE-918"],"vendor":"freescout-help-desk","product":"freescout","affected":["freescout < 1.8.230"],"published":"2026-11-06","updated":"2026-11-06","sourceUpdated":"2026-11-06T17:06:26.940Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-85743","references":[{"url":"https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6w8v-qp43-vg2h","label":"https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6w8v-qp43-vg2h"},{"url":"https://github.com/freescout-help-desk/freescout/commit/09799fd4bcf731704bc2099a87bca0cf18d20acb","label":"https://github.com/freescout-help-desk/freescout/commit/09799fd4bcf731704bc2099a87bca0cf18d20acb"},{"url":"https://github.com/freescout-help-desk/freescout/commit/a4c587cf1fff87eae7d3e4f297fa4cc81ba28704","label":"https://github.com/freescout-help-desk/freescout/commit/a4c587cf1fff87eae7d3e4f297fa4cc81ba28704"},{"url":"https://github.com/freescout-help-desk/freescout/releases/tag/1.8.230","label":"https://github.com/freescout-help-desk/freescout/releases/tag/1.8.230"}],"tags":["cve.org"],"ingestedAt":"2026-11-06T18:00:12.529Z","epss":0.00264,"epssPercentile":0.18291,"slug":"CVE-2026-85743","body":"## Overview\n\nFreeScout is a self-hosted help desk and shared mailbox. Prior to 1.8.230, multiple outbound paths in Helper::downloadRemoteFile(), Helper::checkPort(), Helper::sanitizeRemoteUrl(), MailboxesController.php, and ModulesController.php do not consistently enforce a sink-level restricted-host policy. An authenticated administrator, or another authenticated user permitted to change mailbox connection settings or trigger module update or installation paths, can supply attacker-controlled URLs or hosts. The independent download and port-test sinks can reach encoded or otherwise uncovered loopback and internal addresses. The redirect-validation bypass additionally requires a configured whitelist that permits the original and final hosts while a restricted internal host appears only as an intermediate redirect hop. No unauthenticated SSRF path is established. The server can consequently contact loopback and internal services, provide a blind internal port oracle, and retrieve internal HTTP responses into application-controlled download sinks. This issue is fixed in version 1.8.230.\n\n## Affected\n\n- `freescout < 1.8.230`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":45.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}